Improvement in car-springs



yUNI'I'nIJr i D'IAii'ns 'A'I. .l UDIlLae nLYssns nl vInAL, or PHILADELPHIA', PENNSYLVANIA.

IMPROVEMI'INT IN GAR-SPRINGS.

s'psnanon forming part of Lesers :einem No. 427.5 I9', dated April 2s. "Isae To dll whom'itmay concern;

ne it Img-wn. that 1,-Umssns B. vmA'L, of

,the city and county of Philadelphia, and State of Pennsylvania, have invented anew and useful lmprovementip Springs for Oarsand yother Vehicles; andl do hereby declare that the following is a full, clear, andV exact de-V scription-thereof', xvhchwill enable any per- Ason skilled in-:the artic make. and use theA same, .reference being had to the' accompanying drawings, making'a' part of this specification,- in whichs Vlihgrire 1 isa side sectional elevation of my 1'mprovenient. Fi-g.`2 is a plan view. v Fig. 3

is an'-l outline .view of.aproposed method of 'constructing the'sides of the box.

-eimilar letters of reference indieate'the, same. parts.'

-. Ars the box which contains am" springs,

madeof metal or other suitable'material, in `the rectangular form shown for in any other con venient form. The box may be made solid,

it? desired, Qrits sides may have openings throughv it in the style of net-work tolallow the escape of dust', as represented in: Fig. 3.

4B Bhare the springs,made in the form ot' spiral pyramids or cones vandY arranged to' stand in alternate positions-that 4is `to say, one set or ron?` of springs, B, rest-. upon .their b'ases, while the next adjoining row or set ofv lsprings, Bare inverted, the larger ends of' the cones being uppermost. By this arrangelnient a greater number vof pyramidal spiral springs can be introduced withina given area than would otherwise be possible, while all tlie advantages ofthe pyramidalspiral spring is secured-namely,greater extent of motion, vbecausethe folds of the springs fall Within.l

eachother when .pressed,instead of upon each other, asV with the ordinary form of spiral springs: Ehe springs B B rest upon 4loose vplates (l'C, arranged, as shown, within the box A, and the springs are held in place by having their extremities bent down, so as to pass into holes a in the plates C C,'as shown in Fig. 1.- The springs' may be arranged in series, one above theother, with a.v plate,`0, between each series, as' shown in Fig. A1. As

many tiers' or seriesof springs and plates may bethus arranged together as desired. This arran gement permits the employment of` short and .therefore Istiiit springs.

. is a'plunger tting into the mouth of the box'A and resting upon the upper series of metal or any suitable material. The weight tofbe' sustained bythe springs rests upon or is attached to the plunger D. l'lhis is the method usually employed for car-springs,b`ut other devices besidesthe plunger l) for trans -ferring the 4weight to the springs* will readily suggest'themselves to the skilled mechanic, and in theapplication of my improvement to Jsomekinds ofvehicles not only the plunger D but xthe ease or box A may be dispensed with.

To permit convenient access vto the interior ot'- the box A for the 'purpose of examining `the springs, removing and replacing any thatbecome broken1 &c.,.I-'have one side .of the box provided 'wif h' sliding sides A A", which may be moved vertically betweengrooves b b,

as shown'in Fig. 2. The parts' A Af corre-` spondw'iihthe two series or tiers of springs. To obtain access to the upper series of springs it is only' necessary toremove the upper `sido .interiori or nest springs will assist in support ing the burden and tend to relieve the springs B B'. f 1 i I however donot claim the making of sei eral springs of one piece of wire, nor do I claim the invention of conical 4spiral springs; but,

Having described my invention, I claim as new and desire towsecure by Letters Patent- 1. The arrangement of the pyramidal spiral 'springs'B Bi to stand inl alternate inverted positions, in the manner and for the purpose herein shown and'described. i *2. Having one side of the box divided into as many separate movable parts A" A" as there are tiers of springs, as and for thepur- 'I pose herein shown and described.' f UIHISSES B'. VIDAL. Witnesses: i

HENRY BELFIELD, .AUDREY G. BosWELL.

springs. The plunger maybe composed of 1 

